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Klenk, Patrick und Schmidt, Kersten und Kraus, Thomas und Steinbrecher, Ulrich und Schwerdt, Marco (2021) TandDEM-X Calibration Assessment after Redundancy Switch. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.
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Kurzfassung
After more than nine years of successful radar operations in space, a first major contingency passivated the TanDEM-X satellite's SAR instrument in July 2019. Subsequent investigations led to the decision to switch to the redundant instrument chain, i.e. using the redundant radio-frequency electronics for future radar operations. Here, we report results of the necessary re-assessment of the calibration of the instrument. The redundancy switch did not have a significant impact on the performance of the radar instrument. In particular, the radiometric accuracy remains excellent. The calibration factor differs by -0.9 dB in comparison to the previously operated nominal instrument chain
| elib-URL des Eintrags: | https://elib.dlr.de/130055/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
| Titel: | TandDEM-X Calibration Assessment after Redundancy Switch | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | April 2021 | ||||||||||||||||||||||||
| Erschienen in: | Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| ISSN: | 2197-4403 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | SAR, synthetic-aperture radar, TerraSAR-X, TanDEM-X, contingency mitigation, calibration, absolute radiometric calibration, absolute calibration factor, redundancy, redundancy switch, antenna pattern, RCS, absolute RCS, Terra-SAR-X mission, internal calibration, external calibration, LTSM | ||||||||||||||||||||||||
| Veranstaltungstitel: | European Conference on Synthetic Aperture Radar (EUSAR) | ||||||||||||||||||||||||
| Veranstaltungsort: | Leipzig, Germany | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsbeginn: | 29 März 2021 | ||||||||||||||||||||||||
| Veranstaltungsende: | 1 April 2021 | ||||||||||||||||||||||||
| Veranstalter : | VDE | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben TSX/TDX Kalibration und Projektunterstützung (alt) | ||||||||||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Satelliten-SAR-Systeme | ||||||||||||||||||||||||
| Hinterlegt von: | Klenk, Dr. Patrick | ||||||||||||||||||||||||
| Hinterlegt am: | 06 Nov 2019 16:39 | ||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:33 |
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